It is steady as she goes for Scott Johnson, the Scotland interim head coach, as he tries to steer his team into uncharted territory by winning three consecutive matches for the first time since the RBS Six Nations Championship came into being 13 years ago.

Johnson has made only two changes to his match-day squad of 23 for Saturday’s game against Wales at Murrayfield, both related to availability, but the most significant decision is undoubtedly to switch his fly halves, with Duncan Weir making his first start in winning his fourth cap while Ruaridh Jackson, his Glasgow Warriors team-mate, drops